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Online since: October 2013
Authors: Wei Wei, Chun Fu Zhang, Da Zheng Chen, Rui Gao, Zhi Zhe Wang
Introduction ZnO is a promising materials and widely used in optoelectronics, microelectronics, chemistry and some other fields.
From Fig. 2, the crystallinity of ZnO is very good, since the hexagonal structure is very clear which can be related to the [0002] orientation, but the nanowires seem very different in diameters and shapes of the top surface.
We find that the single nanowire in this condition is shorter in its length and the hexagonal structure is less formed.
Fig. 5 The schematic structure of the TFT of ZnO on SiO2 coated and heavily doped p-type silicon.
Online since: November 2016
Authors: Pornsawai Praipipat, Medhat Mohamed El-Moselhy, Antika Pranudta, Surapol Padungthon
Binary Fe and Mn Oxide Nanoparticle Supported Polymeric Anion Exchanger for Arsenic Adsorption: Role of Oxides, Supported Materials, and Preparation Solvent Antika Pranudta1,a, Pornsawai Praipipat2,4,b, Medhat Mohamed El-Moselhy3,c and Surapol Padungthon1,4,d * 1Department of Environmental Engineering, Khon Kaen University, Khon Kaen, 40002, Thailand. 2Department of Environmental Science, Khon Kaen University, Khon Kaen, 40002, Thailand. 3Department of Chemistry, Faculty of Science, Al-Azhar University, Nasr city, Cairo, 11884, Egypt. 4Research Center for Environmental and Hazardous Substance Management (EHSM), Khon Kaen University, Khon Kaen, 40002, Thailand.
Then, the Fe(III) and Mn(IV) preloaded A502P beads were treated with 200 mL 5%w/v NaOH solution for 3 hrs at 150 rpm, to in-situ precipitated as Fe(III) and Mn(IV) oxides within the inner matrix of macroporous structure of A502P, and then treated with 200 ml 10% w/v NaCl, prior use.
Figure 2F illustrates the macroporous structure of sliced A502P-Fe/Mn obtained using SEM in SE mode at 10,000X and accelerating voltage 5 kV.
Figure 2 EDX spectrum and elemental mapping of A502P-Fe/Mn after As(V) adsorption (A-D) EDX elemental mapping showing distribution of Fe, Mn and As on the cross section of the beads, (E) EDX spectrum showing Fe, Mn, and As peaks with weight percentage of each element, (F) SEM micrograph using SE mode at 10,000X and accelerating voltage 5 kV showing macroporous structure.
Online since: May 2016
Authors: Pornpen Siridamrong, Niyom Thamronganaskul, Penchom Phrotjanatharee
Introduction Eletrospinning is a method which can produce ultrafine fiber in a level of microns to nanometers and produce the tri- dimensional structure [1].
Unfortunately, the electrospun nanofiber mats of natural polymer had unstable structure in water and poor mechanical properties.
Ma, Phase separation, pore structure, and properties of nanofibrous gelatin scaffolds, Biomaterials, 30 (2009) 4094-4103
Piotrowska, The water vapour permeability, mechanical properties and solubility of fish gelatin–chitosan films modified with transglutaminase or 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide (EDC) and plasticized with glycerol, Food Chemistry, 103 (2007) 295-300
Online since: June 2012
Authors: Pei Pei Jia, Hui Li Fan, Qin Yi, Jie Min Liu
Preparation of Silicone-modified Polyester Resin for Colored Steel Sheet Qin Yi1,a, HuiLi Fan1,b, JieMin Liu1,c and PeiPei Jia1,d 1Department of Chemistry, School of Chemical and Biological Engineering, University of Science & Technology Beijing, Beijing 100083, PR China ayiyiustb@163.com, bhuili.fan@163.com, cliujm@ustb.edu.cn, d502046297@qq.com Keywords: colored steel sheet, coating resources for colored sheet, polyester resin, modification Abstract.
Moreover, decorative finish aspects as color and structure and defined surface properties e.g. scratch resistance or anti-fingerprint properties are of increasing importance [3].
The structure change of resin and the formation of Si-O bond were tested by Fourier Transform infrared spectroscopy (FTIR).
The structure change of resin and the formation of Si-O bond were tested by FTIR.
Online since: April 2012
Authors: Zhao Zhe Zhang, Chen Chen, Long Hua Zhao
Results and Discussion Graft reaction mechanism It was necessary to notice that P(3HB-co-4HB) and PLA had the same graft reaction mechanism due to the similar structure, and that MAH, one of very useful monomers, could react with free radicals of P(3HB-co-4HB) and PLA via induced effect of the initiator.
Figure.2 (a) described the relations between graft ratio and content of MAH, The reasons were as follows, MAH with the symmetrical structure hadn't inductive effect, conjugation effect, but had a great stereo-hindrance effect and was hard to bring homopolymerization, So the graft ratio had mainly depended on the size of contact opportunities for between macromolecular free radicals and MAH molecules[6].
Influence of the morphology and the sup-molecular structure on the enzymatic degradation of bacterial poly(3-hydroxybutyrate) [J].Polymer, 1999, 40: 2587
Chinese Journal of Applied Chemistry, 2001, 18(11): 865-868.
Online since: November 2012
Authors: Kattaliya Mothajit, Kittiya Wongkhan, Rukkiat Jitchati
Tuning Color of Charged Iridium(III) Complexes with a Spiro N,N¢-Bidentate Ligand Kattaliya Mothajit1, b, Kittiya Wongkhan1, c and Rukkiat Jitchati1, a * 1 Center for Organic Electronic and Alternative Energy (COEA), Department of Chemistry, Faculty of Science, Ubon Ratchathani University, Warinchumrap, Ubon Ratchathani Province, 34190, Thailand rukkiat_j@hotmail.coma, kattaliya_fern@hotmail.comb, kitt_w_2000@yahoo.ie c Keywords: Organic light emitting diodes (OLEDs), charged iridium(III) complexes, spiro ligand Abstract.
The structures of 6, 7 and 8 are shown in Fig 2.
The molecular structure of charged iridium(III) complexes 6, 7 and 8, respectively The complexes 6, 7 and 8 were characterized by 1H, 13C NMR and IR spectroscopy.
The study of electroluminessence in the simple structure; ITO/PEDOT:PSS/Ir complex/Al will be studied in future.
Online since: December 2012
Authors: Qiu Gen Zhang
Comprehensive Information Management System for Cleaner Production Qiugen Zhang1,a 1School of environment and chemistry engineering, Nanchang Hongkong University, Nanchang 330063, China aniatzqg@163.com Keywords: cleaner production; comprehensive information; management system; design Abstract.
Cleaner Production Comprehensive Information Management System System Management Information Management Evaluation Management System Registry User Management Permission Management Cleaner Production Introduction Cleaner Production Technology Cleaner Production Evaluation Evaluation Parameter Input Evaluation Model Algorithm Evaluation Result Output Fig.1 System Function Structure System Management.
The database stock structure will be designed by creating a conceptual model then producing logical and physical models.
All kinds of cleaner production information and data will be stored in tree structure.
Online since: January 2026
Authors: Antti Kaijalainen, Jukka I. Kömi, Olli Nousiainen, Jaakko Hannula
Low-alloy steel chemistries are favored because the required material properties – namely high tensile strength (TS) and good stretch flangeability – must be achieved at relatively low cost [1].
Steel with better HER exhibited fully bainitic ferrite (BF), while steel with lower HER had a mixed structure: bainitic ferrite at the surface and quarter depth of the specimen, and a polygonal ferrite (PF) layer at the center of the steel with an average grain size of 2.0 μm.
The effective bainite lath size was 1.7–2.0 μm in the fully bainitic steel and the corresponding grain size was 2.2–2.4 μm in the mixed structure.
The main difference between the investigated steel types was the higher intensity of the {112}<111> shear component in the mixed PF + BF structure.
Online since: August 2014
Authors: Abdul Razak Khairunisak, Kuan Yew Cheong, Soo Ai Ng, Poh Choon Ooi, Kean Chin Aw
The memory properties of AuNPs embedded in PMSSQ were also studied through metal/ tri-layer/semiconductor structure.
The I-V curves in Fig. 3 were marked as regions I, II, and III to explain the possible transport mechanisms for the memory device structure.
Gold nanoparticles: assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology.
Langmuir−Blodgett Film Deposition of Metallic Nanoparticles and Their Application to Electronic Memory Structures.
Online since: October 2011
Authors: Lung Chien Chen, Shu Jung Kuo, Cheng Chiang Chen
Fig. 1 schematically depicts the complete structure.
From XRD results, it is believed that the structure of the InN-CPL on the ITO electrode is completely amorphous due to low substrate temperature during sputtering process.
Structure Glass\InN\ITO\TiO2:GNP(15μm)\Dye(D719) \electrolyte(0.5M LiI+0.05M I2+0.05M TBP)\Pt\ITO\Glass InN Voc(V) Jsc(A/cm2) FF η% N0 InN-CPL 0.73 15.6 0.551 6.35 15nm 0.71 19.2 0.581 7.92 30nm 0.72 21.6 0.485 7.55 60nm 0.7 21.2 0.544 8.06 90nm 0.7 23.2 0.548 8.91 120nm 0.7 20.4 0.481 6.88 4.
Ying, Chemistry of Materials, vol. 11, no. 11, ( 1999) 3113–3120.